Can I add a "me too" to this issue, with slightly different version information:
PayPal USA, Canada Installed Version : 1.2.5
Prestashop version: 1.5.3.1
The issue is still the same: the PayPal module is enabled, I've given it my API information, and Currency Restrictions, Group Restrictions and Country Restrictions all show the PayPal module as checked. However, when checking out, I get the error, "No payment modules have been installed." I'm stumped, and am seriously considering giving up on Prestashop, because this is so annoying!
Any help would, obviously, be welcome.